Package nltk :: Package corpus :: Package reader :: Module bnc :: Class BNCCorpusReader

Class BNCCorpusReader

         object --+        
                  |        
   api.CorpusReader --+    
                      |    
xmldocs.XMLCorpusReader --+
                          |
                         BNCCorpusReader

Corpus reader for the XML version of the British National Corpus. For access to the complete XML data structure, use the xml() method. For access to simple word lists and tagged word lists, use words(), sents(), tagged_words(), and tagged_sents().

Instance Methods

[hide private]

__init__(self, root, files, lazy=True)

source code

list of str

words(self, files=None, strip_space=True, stem=False)
Returns: the given file or files as a list of words and punctuation symbols.

source code

list of (str,str)

tagged_words(self, files=None, c5=False, strip_space=True, stem=False)
Returns: the given file or files as a list of tagged words and punctuation symbols, encoded as tuples (word,tag). source code

list of (list of str)

sents(self, files=None, strip_space=True, stem=False)
Returns: the given file or files as a list of sentences or utterances, each encoded as a list of word strings.

source code

list of (list of (str,str))

tagged_sents(self, files=None, c5=False, strip_space=True, stem=False)
Returns: the given file or files as a list of sentences, each encoded as a list of (word,tag) tuples. source code

_words(self, filename, bracket_sent, tag, strip_space, stem)
Helper used to implement the view methods -- returns a list of words or a list of sentences, optionally tagged.

source code

Inherited from xmldocs.XMLCorpusReader: raw, xml

Inherited from api.CorpusReader: __repr__, abspath, abspaths, encoding, files, open

Inherited from api.CorpusReader (private): _get_root

Inherited from object: __delattr__, __getattribute__, __hash__, __new__, __reduce__, __reduce_ex__, __setattr__, __str__

Deprecated since 0.8

Inherited from xmldocs.XMLCorpusReader: read

Deprecated since 0.9.1

Inherited from api.CorpusReader: filenames

Inherited from api.CorpusReader (private): _get_items

Instance Variables

[hide private]

Inherited from api.CorpusReader (private): _encoding, _files, _root

Properties

[hide private]

Inherited from api.CorpusReader: root

Inherited from object: __class__

Deprecated since 0.9.1

Inherited from api.CorpusReader: items

Method Details

[hide private]

init(self, root, files, lazy=True)
(Constructor)

source code

Overrides: xmldocs.XMLCorpusReader.__init__

words(self, files=None, strip_space=True, stem=False)

source code

Parameters:

strip_space - If true, then strip trailing spaces from word tokens. Otherwise, leave the spaces on the tokens.
stem - If true, then use word stems instead of word strings.

Returns: list of str

the given file or files as a list of words and punctuation symbols.

tagged_words(self, files=None, c5=False, strip_space=True, stem=False)

source code

Parameters:

c5 - If true, then the tags used will be the more detailed c5 tags. Otherwise, the simplified tags will be used.
strip_space - If true, then strip trailing spaces from word tokens. Otherwise, leave the spaces on the tokens.
stem - If true, then use word stems instead of word strings.

Returns: list of (str,str)

the given file or files as a list of tagged words and punctuation symbols, encoded as tuples (word,tag).

sents(self, files=None, strip_space=True, stem=False)

source code

Parameters:

strip_space - If true, then strip trailing spaces from word tokens. Otherwise, leave the spaces on the tokens.
stem - If true, then use word stems instead of word strings.

Returns: list of (list of str)

the given file or files as a list of sentences or utterances, each encoded as a list of word strings.

tagged_sents(self, files=None, c5=False, strip_space=True, stem=False)

source code

Parameters:

c5 - If true, then the tags used will be the more detailed c5 tags. Otherwise, the simplified tags will be used.
strip_space - If true, then strip trailing spaces from word tokens. Otherwise, leave the spaces on the tokens.
stem - If true, then use word stems instead of word strings.

Returns: list of (list of (str,str))

the given file or files as a list of sentences, each encoded as a list of (word,tag) tuples.

_words(self, filename, bracket_sent, tag, strip_space, stem)

source code

Helper used to implement the view methods -- returns a list of words or a list of sentences, optionally tagged.

Parameters:

filename - The name of the underlying file.
bracket_sent - If true, include sentence bracketing.
tag - The name of the tagset to use, or None for no tags.
strip_space - If true, strip spaces from word tokens.
stem - If true, then substitute stems for words.

Class BNCCorpusReader

__init__(self, root, files, lazy=True) (Constructor)

words(self, files=None, strip_space=True, stem=False)

tagged_words(self, files=None, c5=False, strip_space=True, stem=False)

sents(self, files=None, strip_space=True, stem=False)

tagged_sents(self, files=None, c5=False, strip_space=True, stem=False)

_words(self, filename, bracket_sent, tag, strip_space, stem)

init(self, root, files, lazy=True)
(Constructor)